mc68160b Freescale Semiconductor, Inc, mc68160b Datasheet - Page 16

• Manufacturer Part Number: mc68160b
• Description: Enhanced Ethernet Transceiver
• Manufacturer: Freescale Semiconductor, Inc

16
RENA
TENA
Differential
TPTX +/– Differential
TPTX +/– Differential
TPTX +/–
(Pre–Emphasis)
(Logic Levels)
RENA
TENA
TCLK
RX
X1
TX
Figure 18. TPTX Transmit Timing (End of Frame) Switching
Figure 17. TPTX Transmit Timing (Start of Frame) Switching
90%
1.5V
1.5V
t 136
Figure 19. RENA Deassert Delay from TENA
1
t 134
90%
t 133
1.5V
1.5V
0
1
1
1.5V
1
MC68160B
+585mV
1.5V
1
0
0
t 130
0
t 137
0V
0
1
1
1
1.5V
0
0
0
MOTOROLA ANALOG IC DEVICE DATA
0
t 135
1
0
0
t 131
0
1
t 132
1
1
1
1
1
1
+585mV